Bicycle lock



FIG. 1 is an elevational view of a preferred embodiment of the bicycle lock of the design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a left end view thereof; and,

FIG. 7 is a right end view thereof. 

CLAIM The ornamental design for a bicycle lock, as shown and described. 